A132671 - cp's OEIS frontend

A132671 a(1)=1, a(n) = 7*a(n-1) if the minimal positive integer not yet in the sequence is greater than a(n-1), else a(n) = a(n-1) - 1.

n	a(n)
1	1
2	7
3	6
4	5
5	4
6	3
7	2
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	56
16	55
17	54
18	53
19	52
20	51
21	50
22	49
23	48
24	47
25	46
26	45
27	44
28	43
29	42
30	41
31	40
32	39
33	38
34	37
35	36
36	35
37	34
38	33
39	32
40	31
41	30
42	29
43	28
44	27
45	26
46	25
47	24
48	23
49	22
50	21
51	20
52	19
53	18
54	17
55	16
56	15
57	105
58	104
59	103
60	102
61	101
62	100
63	99
64	98
65	97
66	96
67	95
68	94
69	93
70	92

[1, 7, 6, 5, 4, 3, 2, 14, 13, 12, 11, 10, 9, 8, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 105, 104, 103, 102, 101, 100, 99, 98, 97, 96, 95, 94, 93, 92]

cp's OEIS Frontend

A132671 a(1)=1, a(n) = 7*a(n-1) if the minimal positive integer not yet in the sequence is greater than a(n-1), else a(n) = a(n-1) - 1.

Table of values

List of values

n	a(n)
1	1
2	7
3	6
4	5
5	4
6	3
7	2
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	56
16	55
17	54
18	53
19	52
20	51
21	50
22	49
23	48
24	47
25	46
26	45
27	44
28	43
29	42
30	41
31	40
32	39
33	38
34	37
35	36
36	35
37	34
38	33
39	32
40	31
41	30
42	29
43	28
44	27
45	26
46	25
47	24
48	23
49	22
50	21
51	20
52	19
53	18
54	17
55	16
56	15
57	105
58	104
59	103
60	102
61	101
62	100
63	99
64	98
65	97
66	96
67	95
68	94
69	93
70	92

n	a(n)
1	1
2	7
3	6
4	5
5	4
6	3
7	2
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	56
16	55
17	54
18	53
19	52
20	51
21	50
22	49
23	48
24	47
25	46
26	45
27	44
28	43
29	42
30	41
31	40
32	39
33	38
34	37
35	36
36	35
37	34
38	33
39	32
40	31
41	30
42	29
43	28
44	27
45	26
46	25
47	24
48	23
49	22
50	21
51	20
52	19
53	18
54	17
55	16
56	15
57	105
58	104
59	103
60	102
61	101
62	100
63	99
64	98
65	97
66	96
67	95
68	94
69	93
70	92

n	a(n)
1	1
2	7
3	6
4	5
5	4
6	3
7	2
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	56
16	55
17	54
18	53
19	52
20	51
21	50
22	49
23	48
24	47
25	46
26	45
27	44
28	43
29	42
30	41
31	40
32	39
33	38
34	37
35	36
36	35
37	34
38	33
39	32
40	31
41	30
42	29
43	28
44	27
45	26
46	25
47	24
48	23
49	22
50	21
51	20
52	19
53	18
54	17
55	16
56	15
57	105
58	104
59	103
60	102
61	101
62	100
63	99
64	98
65	97
66	96
67	95
68	94
69	93
70	92